Outdoor Supply Store in New York, NY, United States
Surviving the Zombie Apocalypse means you are going to be spending a lot of time getting from one place to another. Lots of it may be spent outdoors. If all you have in your closet are what you wear to the gym and those skinny jeans that you can't run in then you might want to stop by a place like REI. Clothing and equipment that's made to take a beating!
You might not think this a good place but prisons might be the best place to create a fortress to keep you out of harms way. These facilities have tools and gear that can help you fend off massive hoards of biters. The only hurdle are the inmates that currently reside at Rikers. If they all turned well, you've got some work to do, if not then it's either bring them to your side and reason or leave them to their own devices. Either way a ready made fortress is something to keep an eye out for.
Want to lean how to use a firearm and how to properly handle and maintain it before all hell breaks loose? Might want to give this place a try. The instructors will teach you from the ground up. From safety to maintenance, take a few classes so that when those flesh eaters are chomping at your bits you can take them on from a distance.
An island close to two major metropolitan destinations with facilities that can keep someone housed, warm, and enough land to sustain a band of survivors. If needed venturing out into NJ and NY is easy via the Hudson river. If Ellis island is kept clear of infection this would be an ideal location to hold up and survive if leaving the area was not an option.
Walking all over can be tiresome and a waste of energy when food and resources are scarce. A mode of transportation that requires no gas or batteries is preferable for getting from place to place. Especially in the a constantly gridlocked city, maneuvering a car through abandoned vehicles can be costly and dangerous. If you can grab a bike that fits your needs. Silent, fast, and agile exactly what you need for the apocalyptic life on the go.
You and thousands of others are probably gonna want to go to a gun range or store, but that would be a bad idea, at least at the start of it all. You and thousands of other geniuses who figured out that that this is one of the handful of places to acquire a firearm in Manhattan. Save this place for a "will scavenge later". Remember guns run out of bullets but that baseball bat with barbed wire and nails you stuck on it or that shovel from home depot lasts for thousands of swings.